Brief description of the plugging of a tube of a heat exchanger has straight tubes and the use of this.

摘要

Is carried out, the cutting of the tube (4) at its ends in the region of the first and second branch pipe (14, 15) and the metal of the junction zones (16, 16 ′) of the tube (4) to each of the taps (14, 15). The cutting up is carried out and the elimination of at least a portion of the tube (4) in the region of at least one of the taps (14, 15). It is introduced into each of the ends of the tube (4) in place inside the heat exchanger, a stopper (24, 30) of tubular shape, whose diameter is smaller than the inside diameter of the tube (4), so that the plug has a closed end (24a, 30a) inside the tube (4) and an opposite end is disposed inside the nozzle (14, 15) corresponding. The plugs (24, 30) in place in the connectors (14, 15) is made, and a continuous weld of sealing between each of the plugs (24, 30) and the nozzle (14, 15), the tube (4) having a certain latitude of displacement in the longitudinal direction, relative to the plugs (24, 30).